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PTFE tube inserts

If direct desorption in an empty tube could cause irreversible contamination of that tube, its best to place the sample in a disposable tube liner. Markes’ direct desorption liners are made from PTFE and designed for use with stainless steel tubes. They protect the tube walls and simplify sample weighing. Two types of liners are available:

  • Snug-fit liners, which should be used for most powdered/granular samples.

  • Loose-fit liners, suitable for semi-solid samples​ (which should be smeared around the inside of the liner).

Hints and tips

  • In all cases, it is critical that the sample does not plug the liner and that carrier gas can continue to flow through unimpeded.

  • Loose-fit liners can also be inserted into tubes packed with a small bed (approx. 1 cm) of sorbent, preventing high-boiling debris from the sample matrix migrating into the flow path.

 

 


SKUDescription 
C-PI010 Liner, PTFE, snug fit, pk 10 Contact your local distributor for pricing
C-PL010 Liner, PTFE, loose fit, pk 10 Contact your local distributor for pricing
C-PI100 Liner, PTFE, snug fit, pk 100 Contact your local distributor for pricing
C-PL100 Liner, PTFE, loose fit, pk 100 Contact your local distributor for pricing

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UK
UK
Markes International Ltd
Gwaun Elai Medi-Science Campus
Llantrisant
RCT
CF72 8XL, UK
Tel: +44 (0)1443 230935
Germany
Germany
Markes International GmbH
Schleussnerstrasse 42
D-63263 Neu-Isenburg
Frankfurt
Germany
Tel: +49 (0)6102 8825569
USA (West)
USA
Markes International, Inc
2355 Gold Meadow Way
Gold River
California 95670
USA
Tel: 866-483-5684 (toll-free)
Part of Schauenburg International
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